How to transfer 12th admission from School in Dubai to Chennai?

How to transfer 12th admission from School in Dubai to Chennai?

My son is studying in Class XI (CBSE) with PCM, Computer Science in an Indian school in Dubai. Due to personal issues, we are forced to seek admission in Chennai. Is the admission possible? What all are the documents I need to carry from Dubai. How to transfer the CBSE Registration details? Pl. help